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Minerals that can be scratched by a knife typically have a Mohs hardness of less than 5.5. Common examples include talc, gypsum, and calcite, which are softer minerals. A knife, generally made of hardened steel, can scratch these softer minerals, while harder minerals like quartz or diamond cannot be scratched by a knife.
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Which o the following minerals can you scratch with a knife blade but not wit a copper coin?
Minerals that can be scratched with a knife blade but not with a copper coin typically have a hardness between 3.5 and 5 on the Mohs scale. For instance, minerals like calcite (hardness 3) can be scratched by a copper coin but not by a knife blade, while minerals like fluorite (hardness 4) can be scratched by a knife but not by a copper coin. Therefore, minerals like fluorite would fit your criteria.
What mineral can be scratched with a knife blade or a window glass?
Mineral that can be scratched with a knife blade or a window glass is gypsum.
Is steak test works only on minerals softer than porcelain?
Yes, the steak test is primarily used to determine the hardness of minerals that are softer than porcelain, which has a hardness of about 7 on the Mohs scale. This test involves scratching the mineral with a steak knife or similar object to see if it leaves a mark. If the mineral can be scratched by the knife, it is softer than porcelain. Consequently, the steak test is not suitable for harder minerals.
Which minerals of Mohs scale can be scratched by a fingernail?
Minerals that can be scratched by a fingernail, which has a hardness of about 2.5 on Mohs scale, include talc (hardness 1), gypsum (hardness 2), and calcite (hardness 3). Therefore, only talc and gypsum can be easily scratched by a fingernail, while calcite is too hard to be scratched by it.
What mineral cannot be scratched by another mineral?
A diamond. Actually, a diamond can be scratched my other minerals.
What minerals can be scratched with a knife?
Minerals that have a hardness less than that of a knife blade (5.5 on the Mohs scale) can be scratched with a knife. These minerals include gypsum, calcite, and talc.
What mineral can be scratched with a steel knife or window glass?
apatite with a steel knife feldspar with window glass
Which o the following minerals can you scratch with a knife blade but not wit a copper coin?
Minerals that can be scratched with a knife blade but not with a copper coin typically have a hardness between 3.5 and 5 on the Mohs scale. For instance, minerals like calcite (hardness 3) can be scratched by a copper coin but not by a knife blade, while minerals like fluorite (hardness 4) can be scratched by a knife but not by a copper coin. Therefore, minerals like fluorite would fit your criteria.
What minerals can a steel knife scratch?
A steel knife can scratch minerals with a hardness lower than that of steel, such as gypsum, calcite, fluorite, and talc. Minerals like quartz, topaz, and corundum are harder than steel and cannot be easily scratched by a steel knife.
What mineral can be scratched with a knife blade or a window glass?
Mineral that can be scratched with a knife blade or a window glass is gypsum.
What minerals can be scratched by all other minerals?
science
What rock is soft enough to be scratched with a knife?
soapstone
What minerals can be scratched by penny?
nickel
Can dolomite be scratched be scratched with a knife?
Dolomite has a hardness of about 3.5 to 4 on the Mohs scale, which means it can be scratched by materials that are harder, such as a knife blade. Most common knives, made of steel, typically have a hardness greater than 4, so they can scratch dolomite. However, the ease of scratching may depend on the specific type of knife and the condition of both the knife and the dolomite surface.
Can magnetite scratch other rocks and minerals?
Yes magnatite does and it can be scratched by a nail Jk!
Which minerals of Mohs scale can be scratched by a fingernail?
Minerals that can be scratched by a fingernail, which has a hardness of about 2.5 on Mohs scale, include talc (hardness 1), gypsum (hardness 2), and calcite (hardness 3). Therefore, only talc and gypsum can be easily scratched by a fingernail, while calcite is too hard to be scratched by it.
What is called in minerals can scratched diamond?
No mineral can scratch diamond.
